The "Program Header Information" enables you to modify the following program information, except:

The correct understanding of the "Program Header Information" pertains to the various elements that can be modified when setting up or editing a program in a FANUC system. The "Program Header Information" typically includes components like the Program Name, which allows identification of the program, Robot Type, which specifies the physical characteristics of the robot being utilized, and Base Information, which outlines the reference frames or coordinates that are relevant to the program's execution.

In contrast, the Active Tool Frame is typically not altered through the Program Header Information. Instead, this refers to the specific tool and its corresponding frame that the robot is currently using during its operation. This element is generally managed separately within the program setup and is not considered a part of the header information. Thus, the modification of the Active Tool Frame is distinct and handled separately from the other program information, making it the exception in this context.